Q: Does your application download pictures from Flickr or does it attach itself to a Flickr (ex: customer adds pictures to a set in Flickr, a: your program needs to download the Flickr changes for the web to see it or B: your program needs nothing because it's getting a "feed" from the Flickr "set". )

A: Actually pictures will not appear automatically. If you want to make changes should add new images from Flickr and regenerate your image gallery.